
I discovered an ELEMENT.
The Big Bang Theory Season 7, Episode 6

"What is the lightest ELEMENT on Earth
with no stable isotope?"
The Big Bang Theory Season 1, Episode 13

but they find
the ELEMENT anyway.
The Big Bang Theory Season 7, Episode 10

What one particular ELEMENT
comes to mind, hm?
Breaking Bad Season 2, Episode 9

The ELEMENT was found
because of you,
The Big Bang Theory Season 7, Episode 6